Make minor enhancements...
Make minor enhancements...

-- Fix every portion of code where URLs switch between OSF/the sandbox.
-- Fix typo.
-- Clean code: remove useless comments and conform to PEP8.

dissemin/dissemin,dissemin/dissemin,dissemin/dissemin,wetneb/dissemin,dissemin/dissemin,wetneb/dissemin,wetneb/dissemin,wetneb/dissemin,dissemin/dissemin